Five steps to digital precision.
Experience an editorial-grade annotation workflow designed for speed, clarity, and uncompromising minimalism.
Install in seconds
Add MarklyKit to your browser from the Web Store and sign in. You're ready to start annotating any webpage right away.
Add to ChromeOpen any webpage
Browse to any article, research paper, or website. MarklyKit activates automatically and overlays your annotation tools without changing how the page looks or works.
The floating toolbar gives you quick access to the highlighter, pen, text tool, eraser, and more — all without leaving the page.
Highlight and annotate
Select any text to highlight it in your chosen color, or attach a sticky note to capture your thoughts in context. Everything stays anchored to the page.
by default, players have the option of HighlightNotethird-person perspectives. The game features an optional achievement system.
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MarklyKit Connector
Connected via MCP
Claude.ai
OAuth · Pro
ChatGPT
OAuth · Plus/Pro
Grok
OAuth · xAI
Available Tools
Connect your AI assistant
ProPlug your research straight into Claude.ai, ChatGPT, or Grok. MarklyKit ships a built-in MCP server, so your highlights, sticky notes, and folders become tools the AI can search and reason over — no copy-pasting, no exports.
Save and export
Export your annotated pages as citation-ready PDFs to share with colleagues, submit for review, or keep as a permanent reference. Highlights, folders, and sticky notes also sync to your private MarklyKit cloud so they're always there when you need them.
Start annotating the web in 30 seconds.
Install MarklyKit, open any webpage, and highlight your first insight — no account required to start. Join 20,000+ researchers, students, and developers who never lose a great idea.
Free forever on one device. Upgrade anytime for cloud sync, PDF export, and Claude, ChatGPT & Grok connectors.